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Finding the Fourth Proportional to 70,880.39, 97,814.06 and 39,048.60

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Solution

The fourth proportional to 70,880.39, 97,814.06 and 39,048.60 is: 53,886.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.39 : 97,814.06 = 39,048.60 : x
  2. Step 2: Convert to fraction form
    70,880.39/97,814.06 = 39,048.60/x
  3. Step 3: Cross multiply
    70,880.39x = 97,814.06 × 39,048.60
  4. Step 4: Simplify right side
    70,880.39x = 3,819,501,908.07
  5. Step 5: Solve for x
    x = 3,819,501,908.07/70,880.39
  6. Step 6: Final answer
    x = 53,886.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.